Conceptual Physical Science (6th Edition)

Chapter 18

Verified Answer ✓

6 ;       On the left-hand side there are three ... more

Verified Answer ✓

; In an ammonia molecule there are hydrogen ... more

Verified Answer ✓

; Mass of the red jelly beans is  The ratio of ... more

Verified Answer ✓

Yes ; The composition of the reactants should be ... more

Verified Answer ✓

Yes  ; Since the carbon is in excess, the extra ... more

Verified Answer ✓

18 g/mole ;   The formula mass of water is 18 amu... more

Verified Answer ✓

6.02 x 1023 lithium atoms ; Since the atomic mass ... more

Verified Answer ✓

water molecules ; Since the formula mass of water... more

Verified Answer ✓

The combustion takes place at a faster rate. ; ... more

Verified Answer ✓

Refrigerator. ; As the temperature decreases the ... more

Verified Answer ✓

By providing an alternate pathway for the reaction... more

Verified Answer ✓

No ; Covalent bond is the bond involving sharing ... more

Verified Answer ✓

An exothermic reaction emits heat energy and ... more

Verified Answer ✓

Increase in entropy ; The entropy change for a ... more

Verified Answer ✓

Living organisms store energy in chemical form, ... more

Verified Answer ✓

To balance an equation the coefficients are used. ... more

Verified Answer ✓

6 ; The oxygen molecule O2 on the right side of ... more

Verified Answer ✓

The mass on the left side of the equation must be ... more

Verified Answer ✓

Changing the subscript changes the compound. ; ... more

Verified Answer ✓

Golf ball and ping pong ball have different ... more

Verified Answer ✓

The atomic masses of oxygen and carbon are ... more

Verified Answer ✓

30 amu ; Nitrogen monoxide consists of one ... more

Verified Answer ✓

One mole marble contains marblesTwo moles of ... more

Verified Answer ✓

; When the mass of a given compound is equal to ... more

Verified Answer ✓

water molecules ; Mole is a measure of the amount... more

Verified Answer ✓

One mole of molecules is equal to Avogadro number ... more

Verified Answer ✓

16 amu ; One atomic mass unit is equal to one ... more

Verified Answer ✓

When reactants collide with an energy equal to or ... more

Verified Answer ✓

The rate of the reaction generally increases with ... more

Verified Answer ✓

Reactant molecules with greater kinetic energy, ... more

Verified Answer ✓

Activation energy ; Activation energy is the ... more

Verified Answer ✓

Chlorine atom ; In the atmosphere, a chlorine atom... more

Verified Answer ✓

A catalyst provides an alternate path for the ... more

Verified Answer ✓

Catalysts remain unchanged after the reaction. ; A... more

Verified Answer ✓

A catalyst lowers the activation energy and speeds... more

Verified Answer ✓

; The bond energy is ; therefore, an energy of ... more

Verified Answer ✓

Releases energy ; A reaction is exothermic when ... more

Verified Answer ✓

Absorbs energy ; The total bond energy of ... more

Verified Answer ✓

Energy is converted from one form to another form... more

Verified Answer ✓

The entropy is always increasing. ; The entropy is... more

Verified Answer ✓

An exothermic reaction releases and spreads energy... more

Verified Answer ✓

Exothermic reaction ; During lightning, an ... more

Verified Answer ✓

Rate of a reaction increases with the ... more

Verified Answer ✓

Adding hydrogen peroxide to a glass containing ... more

Verified Answer ✓

Exothermic process. At the molecular level, water ... more

Verified Answer ✓

The temperature of the cup containing the salt ... more

Verified Answer ✓

The number of carbon atoms in pure diamond is... more

Verified Answer ✓

  ; The number of atoms in gold is .Calculate the... more

Verified Answer ✓

The mass of one mole is . ; Calculate the mass of... more

Verified Answer ✓

; The number of moles of produced is indicated ... more

Verified Answer ✓

is produced from   ; of give of .Hence, of ... more

Verified Answer ✓

; There are 3 carbon atoms, 8 hydrogen atoms and ... more

Verified Answer ✓

water propene ; Consider the chemical reaction ... more

Verified Answer ✓

; It can be observed that 1 mole of and 2 mole ... more

Verified Answer ✓

Both the reactions are exothermic ; For the ... more

Verified Answer ✓

Mass of one mole vanadium is , therefore number of... more

Verified Answer ✓

Since the reaction is endothermic, it has lesser ... more

Verified Answer ✓

Bond energy of bond is ; Bond energy of bond is... more

Verified Answer ✓

The card temperature is , temperature difference ... more

Verified Answer ✓

Both are balanced equations ; In the first ... more

Verified Answer ✓

2 diatomic molecules ; Two diatomic molecules are ... more

Verified Answer ✓

This is a product molecule, not a reactant. ; From... more

Verified Answer ✓

The chemical symbols of the atoms obtained from ... more

Verified Answer ✓

; Water is the molecule with three atoms and ... more

Verified Answer ✓

; It can be observed that the diatomic molecule ... more

Verified Answer ✓

Both have the same number of atoms, atoms in both... more

Verified Answer ✓

18 amu ; A molecule of water consists of two ... more

Verified Answer ✓

; A water molecule consists of two hydrogen atoms... more

Verified Answer ✓

Not possible ; It is not possible since the given ... more

Verified Answer ✓

; Molar mass of one hydrogen molecule is and ... more

Verified Answer ✓

69.78 g of gallium74.92 g of Arsenic ; The given ... more

Verified Answer ✓

; The given sample of gallium arsenide, is one ... more

Verified Answer ✓

Fuel reacts with oxygen which is obtained from the... more

Verified Answer ✓

Endothermic reactions need energy, whereas ... more

Verified Answer ✓

Delays the spoilage. ; Food contamination is ... more

Verified Answer ✓

Only the greater concentration of oxygen make the ... more

Verified Answer ✓

To provide the activation energy needed for ... more

Verified Answer ✓

Photosynthesis capable organisms produce majority ... more

Verified Answer ✓

The ozone produced from automobile will not last ... more

Verified Answer ✓

Majority of HCl dissolves in water. ; Majority of ... more

Verified Answer ✓

Nitrogen monoxide. ; Two mole nitrogen monoxide (... more

Verified Answer ✓

The discharging of a disposable battery is an ... more

Verified Answer ✓

Exothermic reactions are less favored in a ... more

Verified Answer ✓

Entropy increases. ; Following the given chemical ... more

Verified Answer ✓

The activation energy of burning a wood is higher ... more

Verified Answer ✓

Entropy can predict the spontaneity of a reaction... more

Verified Answer ✓

Exothermic reactions results in a disperse of ... more

Verified Answer ✓

When the temperature of the hot pie and the ... more

Verified Answer ✓

Water molecules can disperse much more when they ... more

Verified Answer ✓

The law of entropy states that for an isolated ... more

Verified Answer ✓

The ozone produced near the surface of earth may ... more

Verified Answer ✓

Sixth mass extinction event has been mainly caused... more

Verified Answer ✓

Four P4 molecules on the left hand side means 16 ... more

Verified Answer ✓

Mass of an oxygen atom alone is 16 amu, therefore ... more

Verified Answer ✓

The given sample is one mole nitrogen which has ... more

Verified Answer ✓

Molar mass of aspirin is 180 g, and in one mole ... more

Verified Answer ✓

As the temperature increases number of molecules ... more

Verified Answer ✓

Since the rates of the reactions differ a lot, ... more

Verified Answer ✓

Ozone decomposes to oxygen and chlorine catalyses ... more

Verified Answer ✓

Ultraviolet light is needed for the formation of ... more

Verified Answer ✓

Formation of ammonia is an exothermic reaction, ... more

Verified Answer ✓

Energy disperse through vacuum as heat and ... more

Back to Top

Log In

Contact Us

Upload An Image

Please select an image to upload
Note: must be in .png, .gif or .jpg format
OR
Provide URL where image can be downloaded
Note: must be in .png, .gif or .jpg format

By clicking this button,
you agree to the terms of use

By clicking "Create Alert" I agree to the Uloop Terms of Use.

Image not available.

Add a Photo

Please select a photo to upload
Note: must be in .png, .gif or .jpg format